TavenX712579 TavenX712579

25-10-2022
Mathematics

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In the xy-plane, line n passes through point (0,0) and has a slope of 4. If line n also passes through point (3,a), what is the value of a?

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AkainM30406 AkainM30406

25-10-2022

[tex]\begin{gathered} (y_2-y_1)=m(x_2-x_1) \\ _{} \\ (y_2-0_{})=4(x_2-0) \\ y_2=4x_2 \\ \text{when x}_2=3 \\ y_2=12 \\ \text{Therefore, a}=12 \\ \\ \\ _{} \\ \end{gathered}[/tex]

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